Duplicate Line Remover
Text ToolsDelete repeated lines from any list
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All history →Duplicate Line Remover — at a glance
Clean a list by deleting every repeated line. The first copy stays, the order does not change.
How to use it — step by step
Any list with one item per line — emails, keywords, URLs, names or log lines.
Paste your input
Paste or type your content into the big input box.
Choose options
Pick the mode and options that fit what you need.
Remove Duplicates
Press the button. The result is created instantly on your device.
Copy the result
Check the output and press Copy to use it anywhere.
Pro tips
Small things that make the result better.
Quick facts
Frequently Asked Questions
Does it change the order of my lines?+
No. The first occurrence of each line stays where it was.
What does “keep only lines that appear once” do?+
It removes every line that has a duplicate — both copies — and keeps only the truly unique lines.
How many lines can I paste?+
Tens of thousands work fine on a normal phone or laptop.
Is my data safe?+
Yes. Everything runs inside your own browser. Your text, files and images are never uploaded to any server.